5172172567 has 4 divisors (see below), whose sum is σ = 5243024320. Its totient is φ = 5101320816.

The previous prime is 5172172543. The next prime is 5172172573. The reversal of 5172172567 is 7652712715.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5172172567 - 2²³ = 5163783959 is a prime.

It is a super-3 number, since 3×5172172567³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172172507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35425767 + ... + 35425912.

It is an arithmetic number, because the mean of its divisors is an integer number (1310756080).

Almost surely, 2^5172172567 is an apocalyptic number.

5172172567 is a deficient number, since it is larger than the sum of its proper divisors (70851753).

5172172567 is an equidigital number, since it uses as much as digits as its factorization.

5172172567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70851752.

The product of its digits is 205800, while the sum is 43.

The square root of 5172172567 is about 71917.8181468265. The cubic root of 5172172567 is about 1729.3822699033.

The spelling of 5172172567 in words is "five billion, one hundred seventy-two million, one hundred seventy-two thousand, five hundred sixty-seven".